Water-measuring gate.



No. 643,695. Patented, Feb. 20, I900.

. A. H. STOKES.

WATER MEASURING GATE.

(Application filed July 15, 1899.)

(No Model.)

ms Noams PETERS 00.. PNOYCLLITHQ. WASHINGTON. nv c.

Nin STATES ARTHUR HILL STOKES, OF OLATI-IE, COLORADO.

WATER-MEASURING GATE.

SPECIFICATION forming part of Letters Patent No. 643,695, dated February 20, 1900.

Application filed July 15, 1899. Serial No. 724,020. (No model.)

To all whom it may concern.-

Be it known that I, ARTHUR HILL STOKES, a subject of the Queen of Great Britain,residin g at Olathe, in the county of Montrose and State of Colorado, have invented a new and useful lVater-Measurin g Gate, of which the following is a specification.

This invention relates to water gates for use in flumes, conduits, wasteways, reservoirs, and the like; and one object of the same is to provide a gate adapted to be locked in an adjustable position to admit of the passage of a predetermined quantity of water only through the same, but regulable to control the pressure without increasing the flow or quantity.

A further object of the invention is to simplify and at the same time render more efflcient the construction and arrangement of devices of the character set forth and avoid decay or corrosion of the parts by making them of such material as to withstand the injurious effect of water and also to insure a convenient and lasting assemblage by employing frames which have particular features of construction adapting them to have means for conveniently guiding the adjustable parts.

The invention consists in the construction and arrangement of the several parts, which will be more fully hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective View of a water-gate embodying the invention. Fig. 2 is a transverse vertical section of the same. Fig. 3 is a horizontal section on the line :10 w of Fig. 2.

Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numerals 1 and 2 designate front and back frames, each preferably constructed of a length of angle-iron, with corners cut and bent into a square. These frames are arranged back to back, or so that the inwardlyextending flanges 3 will be adjacently positioned, and are held spaced apart by inserted side strips 4, which provide guides 5 on the inner portions of the side of the frame. The strips 4 form outer closures and the upper and lower ends of the united frames have elongated guide-openings 6 formed between them equal in width to the thickness of the side strips. Movable in relation to the guides 5 is a gate composed of an upper plate 7 and a lower plate 8, which are separated and form an outflow or feed opening. These plates are secured to metal strips 9, slidable in the guides 5 and also through the upper opening 6, and are connected at their upper ends by a cross-bar 10, which has a central grip 11 for elevating or depressing the entire gate. At one side of the central portion of the plate 7 the lower end of a vertical adj listing-bar 12 is secured and is also movable upwardly or downwardly through the opening 6, said bar having a series of apertures 13 therein to receive the shackle of a lock 14 to prevent the downward movement of the gate after it has been adjusted at a predetermined elevation. On the plate 7 and extending longitudinally thereof are a series of marks or lines 15, which serve as indicators to determine the amount of the outflow through the gate. The lower plate 8 has upper and lower stop-flanges 16 to prevent the gate from falling or being lowered beyond a fixed limit or likewise raised, the said flanges being adapted to abut or strike against opposite portions of the lower part of the frame.

This gate may be secured in a suitable framing in a flume, conduit, or Waterway or at any other point where a distribution of water is desired to be made. It might also be readily secured in one side of a box or receptacle or at the outlet of a reservoir, openings 17 for the reception of bolts or analogous fastenings being formed in the united sides of the frames 1 and 2 and by means of which the entire device may be firmly fixed in op erative position by means of bolts or other fastenings.

In positioning the frame with the gate therein it is not absolutely necessary that it be disposed vertically, as in some instances it could work in a transverse direction or even obliquely. The opening between the plates 7 and 8 is of a fixed size, and when the pressure of water over the aperture is constant the quantity of water passing therethrough will likewise be constant. By raising the plate 7 and the parts connected thereto until any of the lines 15 coincide with the surface of the water the pressure only is changed and in accordance with a predetermined calculation which may be indicated by said line. The opening between the plates is not changed by such adjustment and any line can be placed at the water-level. The outflow-opening through the gate remaining the same, the force ot the outflowing water will be varied by the elevation or depression of the gate, as indicated, and will be depend cut on the amount of resistance to a freedom of flow-thatis, if the opening between the plates be located at such a level that very little resistance will ensue to the free passage of the water between the plates then the force of the outflowing water will be that caused by the weight of the body of water itself without artificial addition. On the contrary, if the plates are adjusted at such a level as to offer a resistance to the freedom of outflow the pressure will be increased proportionately to the said resistance and which is added to the natural water-pressu re. Thus it will be observed that the gate in this man- 'ner serves as a meter to regulate the pressure,

and the range of the improved device depends upon the depth of the plate 8, which will be initially regulated when attached to the bars 9. The operation will also be modified by the distance of the aperture or opening between the plates 7 and 8 from the surface of the water. When the elevation of the gate within the frame is changed, the parts are so arranged that the bars 9 may be drawn upwardly any distance, which will elevate the lower plate 8 and also the plate 7; but the gate cannot be compressed below a certain level, because the shackle of the lock let forms a stop on the top of the frame, and the quantity of outflow cannot therefore be increased by improper persons after the device has been set.

Changes in the proportion, size, and minor details of construction may be resorted to to suit different applications without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described the invention, what is claimed as new is- 1. In a water-measuring gate, the combination of a frame, and a gate adjustably mounted therein and comprising upper and lower separate plates with an opening between them of fixed dimension.

2. In a water-measuring gate, the combination with a frame, a gate proper removably mounted therein, and consisting of upper and lower plates having an opening between them of a fixed dimension, the upper plate having a series of lines thereon, and means for adjusting said gate.

3. In a water-measuring gate, the combination of a frame, a gate proper adjustably mounted within said frame and consisting of upperand lower plates having an opening between them of fixed dimension,the lower plate having upperand lowerlimiting-fianges there-- on, and means for adjusting the gate.

4. In a water-measu ring gate, the combination of a frame composed of angle-irons bent into rectangular form and placed back to back, spaced strips inserted between the angle-irons at opposite sides to thereby form guides with the inwardly-extending flanges of said irons, and providing openings at the top and bottom, a gate adjustably mounted in said guides and having an opening of fixed dimension, and means for moving and adjusting the said gate.

5. In awater-measuring gate, the combination of a frame having guides therein, a gate movably mounted in said guides and having an opening therein of fixed dimension, a series of lines being located on an upper portion of the gate, an adjusting-bar attached to the gate and havinga series of openings therethrough, and means for preventing a depression of the said bar beyond a predetermined adjustment.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two witnesses.

ARTHUR HILL STOKPE.

Vitnesses:

E. L. HYATT, W. J. IIORTON. 

